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Sure to be the engine choice of dominant drivers!


Designed in the USA by master engine tuner Steve O’Donnell, the Super Sport .21 is the pinnacle of 1/8 scale nitro racing!  It’s a shining example of the “clean sheet” concept – a fresh look at engine construction and components, with nothing borrowed from existing technology.  Only state-of-the-art machining and materials have gone into producing the Super Sport .21. The engine features the original O’Donnell-designed “big head” machined aluminum heatsink head, dropped down low for a better CG. It’s the engine that top-level racers will be asking for!


  • The crankcase, cylinder sleeve and piston materials are optimized for uniform expansion to improve durability and reliability
  • 4-port ABC cylinder
  • Balanced Max-Flo™ crankshaft with Class 5 precision bearings
  • Machined 7075-T6 aluminum con rod with double bushings
  • Unique, compact 40spring header attachment design
  • Includes a high-performance O’Donnell #99 glow plug


The carburetor on the Super Sport .21 has all of these advantages:

  • Aluminum body
  • Thermal insulating sleeve that prevents vapor lock
  • Low- and high-speed needles with double O-rings on both
  • Hard anodized slide barrel
  • 7 mm and 8 mm restrictors included



• Practical rpm range: 3,000-42,000 • Output: 2.7 hp @ 36,000 rpm


ODOG5010       Super Sport .21 Engine  Retail:$349.99      Street:$229.99


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Updated: December 9, 2010 — 1:54 PM

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